【多选题】
A If an RMAN command fails, the output will only identify the command that failed
B If an RMAN command fails, the output will identify the channel ID where the failure occurred.
C Media Management errors appear as a line with"sbtio
D Some messages in the error stack are not errors
E Media Management errors appear as a line with"Additional information and a number.
F Media Management errors appear as a line with"sbtio and a number.
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